Analysis

  • max time kernel
    92s
  • max time network
    122s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-10-2024 17:45

General

  • Target

    winmm.dll

  • Size

    841KB

  • MD5

    d6a8c7fd490cd1149c0b51d961eab9f3

  • SHA1

    73bb1220ead897fcc36df8d8622104ae82a9ad12

  • SHA256

    119f71276feb0064a7382ae036cc9a7ef9a2cdef69f8b4ca65a0e0ce4643245a

  • SHA512

    0273f74c072f48a3aaac1c6e808fcdcab465513651c5a7815fc75e767af85cd1654073f776a5f41ad2d9606264302333d4524cbe838dacfeae1e1d7ff413befc

  • SSDEEP

    6144:oUCLuxLYxYooT5WjKkwxPQm9msflBOkV4ELEko/q+EIZtCn6Kyn3KzhJTTcAcYGR:TCv/o9rk8597u/PHvLKkAS84RQ8MoJ

Malware Config

Extracted

Family

legion

C2

dns-beast.com

Attributes
  • url_paths

    hittest.php

  • user_agent

    Mozilla/5.0 (Windows NT 6.3; Trident/7.0; Touch; rv:11.0) like Gecko

Signatures

  • Legion, RobotDropper, Satacom

    Legion aka 'RobotDropper' or 'Satacom' is a malware downloader written in C++ and Legion stealer is written C#.

  • Suspicious use of SetThreadContext 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\winmm.dll,#1
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1580
    • C:\Windows\SysWOW64\explorer.exe
      C:\Windows\SysWOW64\explorer.exe
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4008

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1580-1-0x0000025267C00000-0x0000025267D00000-memory.dmp

    Filesize

    1024KB

  • memory/4008-2-0x0000000000710000-0x0000000000737000-memory.dmp

    Filesize

    156KB

  • memory/4008-3-0x0000000000710000-0x0000000000737000-memory.dmp

    Filesize

    156KB

  • memory/4008-4-0x0000000000710000-0x0000000000737000-memory.dmp

    Filesize

    156KB

  • memory/4008-5-0x0000000000710000-0x0000000000737000-memory.dmp

    Filesize

    156KB

  • memory/4008-7-0x0000000000710000-0x0000000000737000-memory.dmp

    Filesize

    156KB